MAST A 0318091 - Caterpillar

Table 1
Required Tools    
Part Number     Description     Quantity    
JEBD3003     Caterpillar Electronic Technician     1    
171-4400     Communications Adapter     1    
207-6845     Adapter Cable As     1    
160-0141     Adapter Cable As     1    
It is possible for the machine to move suddenly when the brakes are released. This can cause injury to persons on or near the machine.To prevent sudden movement of the machine, put blocks in front of and behind the wheels before the brakes are released. If the machine is to be towed, be sure that the released brake(s) can be reapplied or that the towing machine can stop the machine that is being towed.
The transmission neutralization setpoint determines the service brake pressure that is required to neutralize the transmission. The amount of pressure in the service brake system is determined by the travel of the pedal for the service brake. When the service brake is applied, the brake system pressure will rise. When the pressure for the brake system reaches the "Minimum Neutralization Brake Pressure Setting", the transmission will disengage. When the service brakes are released, the brake system pressure will decrease. The maximum brake pressure that was applied is recorded by the Transmission ECM. The "Maximum Neutralization Brake Pressure Setting" sets the maximum pressure that will be recorded by the transmission ECM. The transmission will engage when the pressure for the brake system becomes 300 kPa (44 psi) less than this maximum pressure.This is an example: The pressure on a service brake pedal rises to 1500 kPa (220 psi). The "Minimum Neutralization Brake Pressure Setting" is set at 900 kPa (131 psi). When the service brake pressure reaches 900 kPa (131 psi), the transmission will neutralize. The service brake pressure is sustained at 1500 kPa (220 psi). When the service brakes are released and the service brake pressure decreases to 1200 kPa (175 psi), the transmission will engage. If the transmission neutralization setpoint is set at 600 kPa (87 psi) and the service brake pressure reaches 1500 kPa (220 psi), the transmission will neutralize at 600 kPa (87 psi) and the transmission will still engage at 1200 kPa (175 psi). If the "Maximum Neutralization Brake Pressure Setting" is set at 4000 kPa (580 psi) and the service brake pressure reaches 4500 kPa (650 psi), the transmission will engage at 3700 kPa (540 psi) rather than 4200 kPa (610 psi).The upper limit of the programmable range for the "Minimum Neutralization Brake Pressure Setting" will vary. The limit is based on the "Maximum Neutralization Brake Pressure Setting". The programmable range is given in Table 2.
Table 2
"Maximum Neutralization Brake Pressure Setting"     Allowable "Minimum Neutralization Brake Pressure Setting"    
1700 kPa (247 psi) to
2600 kPa (377 psi)    
400 kPa (58 psi) to
1100 kPa (160 psi)    
>
2600 kPa (377 psi)    
400 kPa (58 psi) to
2000 kPa (290 psi)    Note: For operator setting of the transmission neutralizer, refer to Operation and Maintenance Manual,